Apparatus for sucking dust from upholstered furniture, &amp;c.



PATBNTBD NOV. 19, 1907.

U. DE RS'KIBSTED. l APPARATUS PUR SUUKING DUST PROM UPHULSTBRBD FURNITURE, am.

APPLICATION FILED AUG. 30, 1906.

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v3 S 6 t Wu No. 871,304. PATBNTED NOV. 19, 190?.

` 0. DE P. SKIBSTED.

APPARATUS POR SUUKING DUST PROM UPHOLSTERED FURNITURE, dao.

APPLIUATION rum) AUG. so. 190e.

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' Attorney 'me Nanms j, 15H5 co., wAsmNcfoN. uc.

NiTED srnrns PATnNToFFIon.

. OVE DE FINE SKIBSTED, OF COPENHAGEN, DENMAK.

APPARATUS FOR SUCKING DUST FROM UPHOLSTERED FURNITURE, &c.

To all whom 'it may concern.'

Be it known that I, OVE DE FINESKIB- sTED, lieutenant, who is a citizen of the Kingdom of-Denmark, residing at Strandgade 44, Co enhagen, Denmark, have invented a new and useful Apparatus for Sucking Dust J[Tom Upholstered lfurniture, Carpets, Wall-Coverings, &c.; and I do hereby declare the following to be a full, clear, and eXact description of the same. 1f This invention relates to an apparatus in the natureA of a suction pum especially designed for withdrawing air aden with dust and small particles from carpets, furniture and similar places, and has for its object to provide an improved form of o erative memer that will not be derange by the particles of dust and dirt passing through it.

One of the objects of the invention is to provide an improved means for lubricating the ends -of the vanes that engage the inner wall of the shell or casing.

Another object of the invention is to provide means for scraping or cleaning the ends of the vanes that engage the casing to remove the particles of dust and dirt there- In the drawing showing embodiments of my invention, Figure 1 is -a bottom lan view. Fig. 2 is a vertical section. Flg. 3 shows in vertical section a modification of the invention; and Fig. 4 shows diagrammatically the usual method of mounting and using the device.

In a suitable casing A, a ldrum or disk B is mounted to rotate eccentric with the drum. The drum D is provided with a number of radial vanes C slidable in suitable slots in the drum B, the outer ends of the vanes engaging the inner wall of the casing. When the drum is rotated the vanes engaging the casing will draw air in at the inlet o ening H, and rotating in the direction of t e arrows,

` will force the air out at the opening F. The

opening H is shown as slightly inclined to the axis of the casing and will have a rogressive 'scraping action along the edge oft e vanes as they pass the opening.

The opening at F is in the form of a series of diagonal slots, the portions between the slots acting to scrape t e edges of the vanes and clean them of the particles of dust and dirt. At this exit aprojecting portion E may be provided that can lead into a vessel Specification of Letters Patent. Application filed August 30.1906. sain No. 332.562.

filled with water, to abstract the dust from the air forced through the device.

In Fig. 3 is shown a slight modification in which there are a plurality of openings F separated by intermediate portions g.

At the outer portions of the slots,in the drum B, in which slide the vanes C, are formed recess portions I, making the slots somewhat bell-mouthed. Lubricating material is placed in these recesses I for the vanes C, and will not be withdrawn therefrom by engagement of the drum with the casing. For introducing lubricant into the casing, an o ening D is provided in one of the side walls o the casing, which opening is normally closed by the side face of the drum B, but the opening registers with the recesses I in the drum during the lrotation thereof. The suction action of the vanes will serve to draw in lubricant through the opening D,

which will enter the recesses I. But such action will take place only during the com- Patented Nov. 19, 1907.

paratively short period of time that -therecess I is registering with the opening in the casing. The principal use of the'invention is as a part of an apparatus as indicated diagraml matically in Fig. 4, in which the suction device b is'mounted on a truck f and operated by a suitable motor such as an electric motor a whose shaft is directly connected with or a part of the shaft of the drum B, the electric motor being connected by iiexible cable H with a source of current, by means of a connector g. The switch i 1s truck for starting and stoppmg the motor.:

placed on the g when desired and for controllingyits A pipe cis connected with the opening has a mouth-piece that is brought intolvcontact with the furniture, carpets, etc. tol suck in the dust. u

What I claim and desire to secure by Letters Patent of the United States is: 1. In a suction device, the combination of a casing,'a drum rotatably eccentric in the casing, inlet and outlet openings for the casing, the drum having radial slots therein, vanes arranged to reciprocate in said slot, the slots in the drum having enlarged mouth portions on both sides of the vanes at their outer ends, for receiving lubricant and causing the same t0 be drawn into the slots on reciprocation of the vanes.

2. In a suction device, thecombination of bricant will be sucked in the drum through the casing, inlet and outlet openings for the the side opening and into the recessed porcasing, the drum having radial slots therein, tions of the slots. vanes radially movable-in said s1ots,'the's1ots In testimony whereof, I have signed my 5 in the drums having enlarged portions at name to this specification in the presence of 15 their outer ends for receiving lubricant, one two subscribing Witnesses.

a` casinggga rotatable eccentrically in of the side Walls .of the casing having an open- OVE DE FINE SKIBSTED.

ing normally-closed by the side Wall of the- Witnesses: drum, but registering with the: saidl recessed FLEIsoHER, 10 portion of thefslots the drum, whereby lu- IsoM SETEIL 

